Most bands keep a locked in set per leg. For each tour, there's usually some songs switched around. I've only ever seen DT do completely different sets every night honestly. Plenty of bands switch around songs here and there from time to time or even nightly, but with the production DT's showing off this tour, it's way better to have a permanent set list. There's no way they'll keep the same set for the entire tour cycle of DT12. That makes absolutely no sense to me. I've never seen a band use one permanent set for the entire duration of a tour cycle in support of a new album, especially when the set leaves off 3 of the songs.